Join Jack and Annie as they go on a mission from Morgan le Fay to become Master Librarians. The siblings find themselves by the ocean, and once they climb into a submarine, they are submerged thousands of leagues below the deep blue sea. But when they run into a giant octopus and a hungry shark, will they find a way to get back home safely?
Jack and Annie are ready for their next fantasy adventure in the bestselling middle-grade seriesthe Magic Tree House!
IT'S SINK OR SWIM
for Jack and Annie when the Magic Tree House whisks them off to the middle of the ocean. Luckily, they find a mini-submarine on a coral reef. Unluckily, they are about to meet a giant octopus and one very hungry shark. Will the dolphins save the day? Or are Jack and Annie doomed to be dinner?
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MARY POPE OSBORNE is the author of the New York Times number one bestselling Magic Tree House series. She and her husband, writer Will Osborne (author of Magic Tree House: The Musical), live in northwestern Connecticut with their three dogs. Ms. Osborne is also the coauthor of the companion Magic Tree House Fact Trackers series with Will, and with her sister, Natalie Pope Boyce.
SAL MURDOCCA has illustrated more than 200 children's trade and text books. He is also a librettist for children's opera, a video artist, an avid runner, hiker, and bicyclist, and a teacher of children's illustration at the Parsons School of Design. Sal lives and works in New York with his wife, Nancy.